Children (Grades 3-6) Depression. Children Depression Inventory (CDI) (Kovacz, 1992) is a self-report questionnaire that assesses cognitive, affective, somatic and behavioral aspects of depression in children and adolescents from age 6 to 17. The original version of the questionnaire has 27 items, each containing three sentences. The child needs to choose the sentence that best describes his feelings over the previous two weeks. The scoring of the questionnaire presents a general score and five sub-scores: negative mood, interpersonal problems, ineffectiveness, anhedonia and self-image.